Friction-clutch



(No Model.)

L. S. PFOUTS.

PRIGTION GLUTGH.

No. 451,683. Patented May 5,1891.

Ld/L52? HYZWJMML A TTOKNEY.

UNITED STATES PATENT OFFICE.

LEROY S. PFOUTS, OF CANTON, OHIO.

FRICTION-CLUTCH.

SPECIFICATION forming part of Letters Patent No. 451,683, dated May 5, 1891.

Application ledrMarch 5, 1891. Serial No. 383,897. (No model.)

To a/ZZ whom, it may concern.-

Be it known that I, LEROY S. PEoUTs, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio,

have invented certain new and useful Improvements in a Combined Friction Clutch and Shaft Cut-Off; and I do herebydeclarethat the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specincation, and to the letters of reference marked thereon, in which- Figure lis a perspective view showing the clutch properly mounted on a shaft. Fig. 2 is a side elevation showing parts broken away. Fig. 3 is a vertical section showing a band-wheel. attached to the disk through line wir, Fig. 2. Fig. 4 is a view of the sliding collar, showing the yoke removed and illustrating the location of the operating-arms. Fig. 5 is a detached view of one of the frictionsegments.

The present invention has relation to combined friction clutches and shaft cut-offs; and it consists in the different parts and combination of parts hereinafter described, and particularly pointed out in the claims.

Similar letters of reference indicate corresponding parts in all of the figures of the drawings.

In the accompanying drawings, A represents the loose disk, which may be of the form shown in Fig. 1, and as shown in said Fig. 1 its outer periphery is smooth, and may be used as a band-wheel, if desired. If desired, spokes may extend from the periphery of the disk A and the band-wheel B attached to the outer ends of the spokes a.

The disk A and the band-wheel B, together with the spokes a, may be cast in one piece, if so desired. When it is desired to use my device only as a friction-clutch, the disk A is loosely mounted on the shaft. b, in which event the shaft b extends entirely through the hub C.

When it is desired to use mydevice as a combined friction-clutch and shaft cut off, the hub C is securely fixed to the shaft c by means of the key d or its equivalent. The disk D is securely fixed to the shaft h by means of the key d or its equivalent, and as shown in Fig. 8 said disk D is located within the disk A. The friction-segments are located between the inner wall of the disk A and the outer periphery or face of the disk D.

In the drawings three friction-segments E are shown; but it will be understood that two segments may be used and the same object accomplished; or, if desired, four frictionsegments may be used; but I prefer to use three segments and locate them substantially a-s illustrated in Figs. l and 2.

For the purpose of providing a better friction-surface upon the outer faces of the friction-segments E the wooden strips f are located upon said friction-segments E and are attached thereto in any convenient and wellknown-manner, the manner of securing said wooden strips being immaterial. I prefer, however, to attach said wooden strips by means of ordinary clamping-bolts and seating their heads into the wooden strips f.

The friction-segments E are provided with the arms F, which arms extend inward, as illustrated in Figs. l, 2, and 3. The arms F are located between the web of the disk D and the annular band G. The innerend of the arms F are provided with the apertures g, which apertures are for the purpose of receiving the head or end of the screw H. For the purpose of causing the screw H to move with the arms F and the friction-segments E the set-screws g are provided, which setscrews are for the purpose of securely fixing the screws H to the arms F. Upon the screws H are located the screw-threaded arms I, and t0 the free ends of the arms I are pivotally connected the links J, the opposite ends of said links .I being pivotally attached to the sliding collar K, which sliding collar is located upon the shaft b, and is so adjusted that it will slide back and forth on the shaft b. For the purpose of providing a means for holding the screw-threaded arms I- and preventing said arms from following the longitudinal movements of the screws H the posts 7L are provided, which posts are preferably cast with the disk D. The screw-threaded arms I are located between the posts h and the hub of the disk D, as illustrated in Fig. 3.

For the purpose of allowing the screws H to move longitudinally the apertures h are formed in the hub of the disk D. For the purpose of providing a means for sliding the IOC collar Ii back and forth upon the shaft I; the groove 7a2 is provided, which groove receives the yoke L, said yoke being attached and operated in the ordinary manner. It will be understood that as the sliding collar K is moved upon the shaft b that it will swing the arms I by means of the links J, which causes the screws II to move endwise, and thereby move the friction-segments E.

Then the arms I are swung in one direction, the screws II will be forced outward and carry with them the arms F and the frietion-seg ments E, which cause said friction-segments (or the wooden strips f) to press against the inner wall of the disk A. and cause the disk A to revolve with the disk D. Then the arms I are swung in the opposite direction by means of the sliding collar K, the screws II will be moved inward and release the friction-segments E, at which time the disk A ceases to rotate with the disk D. It will be seen that by securely attaching the hub C to the shaft c that said shaft c will cease to rotate when the friction-segments E are released from the inner wall of the disk A, thereby providing a shaft cut-oft'. For the purpose of adjusting the screws II the nuts M are provided, which nuts are formed solid with the screws II and are located between the posts 7L and the inner ends of the arms F. It will be understood that by providing the nuts M, I am enabled to readj ust the friction-segments E should the wooden strips f or the friction-segments E become worn from use. \Vhen it is desired to adjust the screws II, the set-screws y are loosened, which in turn loosens said screws II `from the arms F, at which time a wrench can be applied to the nut M and the desired adjustment given the screws II, after which the set-screws g are again tightened, thereby sccurely fixing the screws II to the arms F.

IIaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

I. The combination of the disk A, loosely mounted on the shaft I), the disk D, fixed to the shaft I), the friction-segments E, the arms F, the screws II, fixed to the arms F, the screwthreaded arms I, located upon the screws II, the links J, pivotally attached to said arms I and to the sliding collar II, and the sliding collar II, located upon the shaft b, and means for operating the sliding collar, substantially as and for the purpose specified.

2. The combination of the disk A, fixed to the shaft c, the disk D, fixed to the shaft I), the screws lI, fixed to the arms F, the arms F', the friction-segments E, provided with the wooden strips `f,the screw-threaded arms I, located upon the screws II, the links J, and means for swinging the arms I,^substantially as and for the purpose specified.

The combination of the disk A, having located therein the disk D, the segments E, the arms F, the annular band G, the screws II, the set-screws g', the screw-threaded arms I, and means for operating said arms, substantia-ily as and for the purpose specified.

In testimony thatI claim the above I have hereunto subscribed my name in the presence of two witnesses.

LEROY S. PFOU'IS.

\\'itnesses:

IC. A. C. Snrrn, F. \\r. loivn. 

